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Found 69 results

  1. Hi all, This might seem a strange set of questions but I'm trying to understand how to operate overdrive as I've never driven with this before, and I'm hoping to have my car back soon- it really has been the slowest and most stalled of rebuilds ever known!! I know o/d can be used in 3rd and 4th on mine. 1. When should I operate o/d for the first time on a journey - do I have to be at a certain speed and in 4th at first selection? 2. Do I need to deselect o/d before shifting down from 4th to 3rd? 3. Do I need to deselect o/d before shitfting up from 3rd to 4th? 4. When I turn the engine off is o/d cancelled if I haven't already done it? ie will it still be in o/d when I next turn the car on? 5. Is there an easy way to know if o/d is selected whilst driving (other than the revs being lower)? Thanks, Steve
  2. Well, new to me anyway... I've been making do with a crescent shaped spanner for my overdrive sump drain plug, getting grazed knuckles in the process, but I recently found out Moss now do a proper ring spanner (part number 521814T) - hopefully makes life that bit easier! Comparison photo attached. Cheers Steve
  3. The Solenoid mount side plate of my overdrive still leaks, even after ensuring the plate was flat, fitting a new gasket and smothering both sides with Hylomar Thicker gasket, silicon sealing compound .....? Anyone faced this and solved the problem with a 'cunning plan' all ideas gratefully received
  4. So I have a new OD solenoid which I was going to fit today, as the garage had a look and said all seemed fine with what was going to it but it was not operating. the wire was disconnected and up on top of the box (I assume the garage had left it off), so had to get the tunnel out to get at it....which was a pain! Reconnected wire to old solenoid, sure enough, a click is only heard from relay when disengaging, nothing from solenoid and no operation. Connected new solenoid (did not install it in situ).....same thing. Put meter on cable to solenoid....sure enough 12.5 ish volts on it when engaged, 0 when disengaged. Put meter on old solenoid, disconnected.....very low ohms, going up to 12 ish when plunger pushed up. Same on the new one. This indicates they both should work fine, right? But no dice.....I can't figure what the problem is.
  5. Hi i own a CP version UK 1971 TR6 with overdrive, have done since 1979.The car was professionally rebuilt in 1993 and at the same time the gear box was rebuilt by Pete Cox. The car has done only a few thousand miles in the last 25 years. However it does have a problem time to time with gear selection when going into reverse. Twice I’ve knocked it too far over and got it stuck. The first time the gear box had to come out. It’s time this got sorted so can anyone recommend a TR specialist who can replace the worn gear selection mechanism and attend to any other gear box issues they may find along the way? I live in Hampshire.Thanks in anticipation of recommendations.
  6. I realized today that the headlights in my '63 TR4 stopped working. And the overdrive also stopped working. I'm very new to this car and not familiar with the electrical system. Thinking things through, I did just finish working on two things related to my electrics: 1.) I just added a battery charger cable/lead to the battery. In doing so, I did touch the wrench to a ground by mistake, creating a spark. 2.) I relocated my dip switch (up higher) to create a dead pedal spot for my left foot . Both fuses appear OK. And reading a few forum entries here on Triumph Experience, I understand the TR4 headlights are not fused. So what should I check?? Thanks in advance.
  7. Had problems with the Overdrive that turned out to be the switch. So I replaced it, but this one is nearly as bad in as much as the overdrive will keep dropping out and reengaging. Are they all from the same source or are some better than others? Definitely the switch because if I put pressure on it I can get The overdrive to cycle! Or has anyone managed a good modification?
  8. Hi All Kind of linked to my previous Overdrive post (Electricy Help) but more help needed with my electrical bits. So for info it’s a UK 72 Pi and I’m installing ALL new Autosparks harnesses for the model and options. So the Autosparks mini harness code 865 goes from the relay and ends up with two spurs, one goes to the OD and connects via another little harness BC58, and hopefully I’ve got that bit ok now. But there is still that question where does the second spur off the 865 Relay to OD harness go. It has to go to the OD switch right? But harness has a yellow green wire and a plain yellow, but the switch has the same yellow green but a black. Hmm. I suppose the black earth from switch can connect to any earth but not sure about the single yellow from the OD harness (865)? Then there is a spur off the main harness, kind of after the heater and behind the Tacho. It contains 4 wires, 3 brown of varying thicknesses and a white with a red trace. So not sure what it is or where it goes. I was thinking through the bulkhead to supply the starter but not sure. Slightly daft question, apart from the Horn wiring do all three column switches go under the steering column harness cover (part 611369) I’m assuming they do but it seems a bit tight through the alloy column clamps (611529 and 611530). Hopefully pics below will help. Cheers Keith
  9. Anybody need a Gbox with a jtype and a 6cyl? Would all need re-doing
  10. First time using the Forum today although I confess to being an avid follower and have benefitted from some great advice and tips. I have a Type A Overdrive in my 1970 TR6 which engages straightaway when switched on however it has recently begun to disengage under acceleration? Almost like having a kick-down in an auto transmission vehicle! It quickly re-engages when the throttle is backed off and will cruise happily until an incline is encountered or any additional power is applied. Oil level was fine when last checked prior to being put away for the winter, although that was a little while ago, the car hasn’t been out much (once this year!) Suggestions greatly appreciated…
  11. Hi All Bit of a query with fitting my new(ish) overdrive harness. Now the wiring diagram for the overdrive is pretty simple. But the reality looks a little more complex to me. My A type has three switches mounted on the GB top cover, presumably the various on/off switches to stop engagement at the incorrect times, ie reverse and 1st. So I need to install my Autosparks 863 overdive harness, pictured, and 865 overdrive relay harness. The relay end of the relay harness is simple enough but I’m not sure about the gearbox end. Does anyone have any pic s or diagram of which colour wires go to which switch and in what order and I’m assuming the feeds from the relay go to one of the switches (first one) on the gearbox but not sure and need a little guidance. Thanks Keith
  12. I think I may have finally got to the bottom of why my overdrive was taking an age to disengage. The restrictor valve was blocked. To get to it, I had to dismantle the interior of the car to get the gearbox tunnel out. Was there an easier way to get to the pesky thing? Have I just done something the hard way? Pictures attached of the valve (With a pin in it) and the stripped down TR4A interior. Best. Paul.
  13. I have to replace the wiring for the overdrive on my j type overdrive on my TR 6 C.R as it currently resembles a burnt out sparkler ! A previous owner has used a relay in the circuit which I dont think it should have. It has also been modified to work on three gears. What ampage wire should I be using for the circuit to operate the overdrive ? Should I use a relay in the circuit? MARK
  14. Hello (again) All I have a choice between putting in a J-Type or A-Type overdrive in my restoration project. I was just wondering what peoples thoughts on are this are. I know the A-Type is the correct OD, but is the J-Type a better unit to have? I will keep both units with the car so the next owner (if I ever do sell it!) can change it if they so wish. I have heard that the J-type is the better one to have in your car and use; the A-type can be slower to engage/disengage as well as being more tempremental. Of course, the J-type will give a higher drop in RPM, but I'm guessing going from 22% to 28% doesn't make too big a difference. Any help would be greatly appriciated as I feel I'm in the middle quite a dilemmia. Thanks in advance!
  15. Hi All With a lot of help from a fellow club member,we removed the gearbox from my 1971 Tr 6 today. The reason for removing the box was because the drive started slipping, however it wasn't clear if it was the clutch or the overdrive (A Type). Either way the box had to come out. The clutch was fitted on 27th of April 1993 and has covered approx 95,000 miles. I acquired the car 4 years later and removed the engine and gearbox to replace the ring gear on the flywheel. I decided at the time to leave the clutch and only replaced the fork pin with a new hardened one. This decision has been vindicated as its been fine over all that time, but what to do now. What do you all think of the condition of the clutch, and would my best plan be to get it reconditioned, I would like to keep the Laycock cover .I can't see any reason for the drive slip from the clutch,the shaft , fork and pin are fine, any thoughts Thanks Cameron
  16. Hi, When disengaging my overdrive it used to be instant and positive. Now when disengaged it takes time to disengage. Any thoughts? (I'll be able to check the solenoid later today/tomorrow to see how it is operating). Thanks. Paul.
  17. Simple question, whats the correct size spanner for the above? Cheers Iain
  18. I recently purchased a '58 TR3A and the commission tag ends in "LO". The car has Overdrive (love it). But, I just received a British Motor Heritage certificate and it shows the commission number ending in "L" with no "0". Also, under Optional Factory Equipment, it does not list Overdrive. The mystery is how can the commission tag show LO and the car has Overdrive but the Heritage certificate does not ? Thanks!
  19. Hi chaps, A few weeks ago while driving, on excelleration in third gear overdrive it came out of overdrive and excellerated then went back into overdrive, this would also happen in fourth as well without touching the switch, Today I have no overdrive at all, So could this be a symptom of a failure waiting to happen, and now has. I have read fault finding points to check on but was hoping you guys may have encountered a similar fault in the past, Thanks in advance Duncan.
  20. Hello all... Let's try to keep this to ourselves (I don't want those Peerless guys getting wind of this) I've started restoring a 1960 3A I know, SPLITTER! I'm just asking in case there's a good resource/cheat sheet of 'sensible/practical modifications' for people doing a complete nut and bolt rebuild. Does anything want strengthening/beefing up/adding/cutting off (I'm talking about the car) etc on either the body/chassis ? Are there any well known weaknesses or failings (I'm talking about the TR...) that can be improved upon without spoiling the originality (noticeably)? (I'm certainly thinking about the rear crank rubber oil seal mod as no one would ever know except the people I get my driveway cleaning fluid from...) My chassis has already been powder coated (that was already done) and I intend to get the endoscope into the chassis tubes to preclude any nasty surprises later but now's the time to make any mods if any are necessary. I'm not aiming for bloody minded 100% originality to the absolute exclusion of every day practicality but I don't want to be adding ABS and IOBD2 either. The car will be used virtually every day in the same way I used my Warwicks/Peerlii in the past so it's got to be reliable and reasonably usable in modern conditions (i.e. crawling along at 2mph 50% of the time and having the suspension battered to death by 4" deep pot holes the other 50%. Once any modifications and repairs to the body/chassis are complete, my first job will be mounting the (etch primed) body on the chassis so that all the paint prep work can be carried out and panel gaps sorted. So for instance..... Where do I buy (or do I make) the best possible body mounting kit? I've seen talk on here of the old fabric impregnated rubbers being better, if this is true does anyone sell them? I'm sure I will have a million questions but I'll try to ask some of you in person as I look around all the 3A's at Malvern this year... Thank you for reading this far and if you have any comments that will be a great bonus! Jon
  21. Hi, Does anyone know what size the 'O' rings are on the solenoid of a J Type gearbox? I've taken the solenoid off to check it works before I drop the body tub back on. The existing rings look o.k. but if I could find a supplier it would seem sensible to replace them whilst its off. The usual TR suppliers don't seem to sell them but if I knew the size I could probably get them from an 'O' ring supplier. Regards, Barry
  22. During a long run the J type overdrive was becoming slower to engage taking a good few seconds. After an overnight rest the overdrive engaged once more before stopping altogether. The oil level was checked but still no change. Did not have facilities to check anything else while completing north coast 500. Any areas I should check first would be appreciated. Craig
  23. How much movement should there be in the differential. I was fitting a new spline to the rear wheel when I noticed that there is some free play when you move the wheel. I will measure it later today. I think that it is still adjusted as when new and is probably due for an overhaul. Please advise. Thanks Richard & H.
  24. Having just covered 2000 miles in the sunshine of France I have returned with a need to improve the cruising experience. So the question is how do I alter the gearing to reduce revs in top gear. I have a late '71 6 with A type overdrive, I know it's possible to put in a foreign box but I like the overdrive and wouldn't like to lose it. I have considered the pipe and slippers version with a burbling V8 but I'm just not old enough for that yet! Any thoughts??
  25. Overdrive has never worked since I bought my TR5 a while ago. The relay could be heard clicking on switching into overdrive (in 2nd, 3rd and 4th) but no movement /noise from the solenoid. I recently removed the gearbox tunnel as part of an exhaust change (new brackets need etc) and decided to get to grips with the o/d problem. A quick test showed that there is 12v to the solenoid when overdrive is switched in but o/d does not engage. A quick inspection of the solenoid revealed a brown substance resembling molten resin which had run down the cylinder internally I think and solidified around the piston preventing movement and clogging up the cylinder. I am assuming that replacement of the solenoid will solve the overdrive problem, but am concerned what the cause may have been. Are failing solenoids prone to overheating etc. There is no sign of any other electrical overheating/damage in the vicinity. Perhaps people could offer views based on their experiences and electrical circuit knowledge? Many thanks
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